Preheat the oven to 350°F. Combine the butter and brown sugar in a large mixing bowl and beat to combine. Add the egg and beat again until smooth and fluffy.
In a separate bowl, whisk together the flour, salt, baking powder, baking soda, cinnamon, cloves, and nutmeg. Add the dry ingredients and beat to combine. Stir in the raisins and nuts.
Drop generous 2 tablespoon portions onto a greased or parchment-lined baking sheet. Bake for 12-14 minutes, until golden brown on the edges. Transfer to a wire rack to cool completely.